<?php

declare(strict_types=1);

namespace LinkCheckup\Features\Schedule;

final class JobState {

	private const ENABLED_AT_FIRST = true;

	public function __construct(
		public readonly bool $enabled,
		public readonly Frequency $frequency,
		public readonly int|null $last_run_at,
		public readonly int|null $last_count
	) {
	}

	public static function initial( JobId $job ): self {
		return new self(
			self::ENABLED_AT_FIRST,
			$job->default_frequency(),
			null,
			null
		);
	}

	public function with_schedule(
		bool $enabled,
		Frequency $frequency
	): self {
		return new self(
			$enabled,
			$frequency,
			$this->last_run_at,
			$this->last_count
		);
	}

	public function with_run( int $ran_at, int $count ): self {
		return new self( $this->enabled, $this->frequency, $ran_at, $count );
	}

	public function has_same_schedule( self $other ): bool {
		return $this->enabled === $other->enabled
			&& $this->frequency === $other->frequency;
	}

	/** @return array<string, bool|string|int|null> */
	public function to_array(): array {
		return array(
			'enabled'     => $this->enabled,
			'frequency'   => $this->frequency->value,
			'last_run_at' => $this->last_run_at,
			'last_count'  => $this->last_count,
		);
	}
}